What’s special about 2011?

2010 is gone. And I always like even numbered years compared to odd ones. I was asking to myself, what’s special about 2011? It works out that 2011 is indeed special.

First: 2011 is a prime number. The fundamental building blocks of number system, prime numbers are special. It means 2011 can not be expressed a product of smaller prime numbers (or any other numbers for that sake). And then, a friend pointed out 2011 can be expressed as sum of 11 prime numbers.

2011 is a prime number & sum of 11 consecutive prime #'s: 157+163+167+173+179+181+191+193+197+199+211=2011

8 responses to “What’s special about 2011?”

@Omar, check here: http://oeis.org/A139253/b139253.txt , it shows the toothpick sequences for n starting from 1 through 181. The step mentioned in the post is +1, considering the fact that whether you start with 1 at step 0 or step 1.